feat(ci): notify slack channel on deployment

Author: mrmaloof

cloudbuild-webapp.yaml

@@ -36,6 +36,19 @@ steps:
       - '${_REGION}-docker.pkg.dev/${PROJECT_ID}/edvise-api/webapp:$COMMIT_SHA'
       - '--region'
       - '${_REGION}'
+  - name: curlimages/curl
+    args:
+      - '-X'
+      - POST
+      - '-H'
+      - 'Content-Type: application/json'
+      - '-f'
+      - '-d'
+      - >-
+        {"text":"🚀 *$REPO_NAME* deployed · `$BRANCH_NAME` · $TRIGGER_NAME · $BUILD_ID"}
+      - >-
+        https://hooks.slack.com/triggers/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
+    id: notify-slack
 timeout: 600s
 options:
   logging: CLOUD_LOGGING_ONLY